Qt open file dialog box

In the project, you need to open the file dialog box and check it. I have to say that the help document of QT is very good and very detailed. There are two ways to implement this function: Use the static method of qfiledialog to instantiate the qfiledialog object.

It is basically a copy of the help document. The following is your code.

1 // click the file button 2 void firstdialog: on_pushbuttonfile_clicked () 3 {4 qstring strfile = qfiledialog: getopenfilename (5 this, 6 tr ("Open File "), 7 tr ("C: \"), 8 tr ("SQL files (*. SQL *. TXT); text files (*. TXT); all files (*. *) "); 9 UI-> lineeditfilename-> settext (strfile); 10}

The static method is very simple. If another method is not used, leave it alone.

Help document: